Your pocket notebook, upgraded.

Inspired by the classic pocket notebook used to track IOUs, we built an app that makes splitting bills painless. Snap receipts, claim what you ordered, and settle up fairly — no more awkward money conversations.

555 Notebook app — tablet view
555 Notebook app — trip list screen

Everything you need to split bills fairly

No more spreadsheets. No more "I'll pay you back later." Just fair, transparent splitting.

📷

Receipt Scanning

Snap a photo of any receipt — our AI extracts every item, price, and total automatically.

Claim-Based Splitting

Everyone taps on items they actually consumed. No more unfair equal splits on the pizza you didn't eat.

🤝

Smart Settlements

We calculate who owes whom and suggest the fewest transactions needed to settle up.

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Multi-Payer Support

Multiple people paid the bill? No problem. Split who paid what on any receipt or expense.

📶

Offline Mode

Works without internet. Your trip data is cached locally and syncs when you're back online.

🌎

Multi-Currency

Supports 152 currencies. Perfect for international trips — set the currency per trip.

How it works

From group dinner to settled up, in four simple steps.

1

Create a Trip

Set currency, name your trip, and invite friends via QR code or share link.

2

Add Receipts

Snap a photo for AI extraction or add expenses manually. Both work great.

3

Claim Items

Everyone taps on what they consumed. Unclaimed items auto-split among the group.

4

Settle Up

See who owes whom, send reminders, and record payments. Done!

Simple, fair pricing

Most features are free. Credits unlock premium actions.

Always Free FREE
  • Manual receipts & expenses
  • Settlements & balance tracking
  • Item claiming & splitting
  • Editing receipts & expenses
  • CSV export
  • Join unlimited trips
  • Push notifications & nudges
  • Offline mode
Credits

10 free credits on signup. 1 credit for each:

  • Create a new trip
  • Scan a receipt (AI extraction)
  • Duplicate a trip
CreditsPrice (USD)
10 credits$1.00
20 credits$2.00
50 credits$5.00
100 credits$10.00
500 credits$50.00

Frequently Asked Questions

555 Notebook is a trip expense splitter inspired by the classic pocket notebook shopkeepers used to track debts. We turned that concept into a modern app that helps friend groups split bills fairly, item by item.

Just snap a photo of your receipt. Our AI model reads the merchant name, individual items, quantities, prices, and the total. It supports multilingual receipts and automatically translates item names to English. Scanning costs 1 credit.

Most apps do equal splits. 555 Notebook uses claim-based splitting — each person taps on exactly which items they consumed. This means if you only had a coffee while your friend ordered a burger and fries, you only pay for your coffee. Unclaimed items are auto-split among everyone.

Yes! Your trip data is cached locally so you can view balances, receipts, and expenses without internet. When you're back online, everything syncs automatically. An offline banner appears to let you know when you're disconnected.

We support 152 ISO 4217 currencies including USD, EUR, GBP, JPY, SGD, THB, MYR, and many more. Each trip has its own currency, making it perfect for international travel.

Absolutely. All data is encrypted in transit (HTTPS), passwords are hashed with bcrypt, and authentication tokens are securely stored. We don't sell your data. You can delete your account at any time, and we'll remove all your personal information. See our Privacy Policy for details.

You get 10 free credits when you sign up. Credits are used for creating trips (1 credit), scanning receipts with AI (1 credit), and duplicating trips (1 credit). Everything else — manual receipts, expenses, settlements, and joining trips — is completely free. Top-up starts at $1.00 for 10 credits.

What's New

v1.0.0

Initial release (closed testing)

  • AI receipt scanning with multilingual support
  • Claim-based and custom expense splitting
  • Smart settlement suggestions
  • Multi-payer receipts and expenses
  • 152 currencies supported
  • Offline mode with auto-sync
  • Push notifications and nudge reminders
  • Trip activity feed, recap charts, and CSV export
  • Google Sign-In and credit system
  • Dark mode

Ready to split smarter?

Download 555 Notebook and start splitting expenses the fair way.